Cotton-spray.



W. WALKER.

COTTON SPRAY.

APPLIUATION FILED sEPT. 27, 1912. LO'YLQSQ Patented Aug. 26, 1913.

2 SHEETS-SHEET 1.

W. WALKER.

COTTON SPRAY.

APPLICATION FILED SEPT. 27, 1912.

1371, 186, Patented Aug. 26, 1913.

2 SHEETS-SHEET 2.

carton.

WALTER WALKER, OF ADMIRAL, TEXAS.

coTroN-smay.

spe ifi n o t s Pat n Patented A ug. 2c, 1913.

Application filed September 27, 1912. Serial No. 722,756.

To all Il /LOII'L 1' I may concern lie it known that I, VALTER WALKER, acitizen of the United States, residing at Admiral, in the county ofCallahan and State of Texas, have invented new and useful Improvementsin Cotton-Sprays, of which the following is a specification.

The present invention relates to spraying devices for destroying insectlife which infest plants.

The device is primarily intended for spraying cotton plants, and is soconstructed and arranged as to travel over the plants, and to spray thesaid plants from opposite sides.

The invention consists in the construction, combination and arrangementof parts set forth in the following description and falling within thescope of the appended claims.

In the drawings, Figure 1 is a side elevation of a device constructed inaccordance with the present invention. Fig. 2 is a central longitudinalsectional view through the same. Fig. 3 is a detail longitudinalsectional View taken through one of the outlet pipes and spraying nozzleattached thereto, as well as through the axle of the rear wheel of themachine. Fig. 4 is a transverse sectional view taken approximately uponthe line XX of Fig. 1. Fig. 5 is a plan view of the improvement inapplied position on the rear axle of a truck, and showing the cams ofthe wheels co-acting with the plunger rods. the remainder of the runninggear and the tank being removed.

The device contemplates the employment of a wheeled truck upon which ismounted a tank which is adapted to contain an insect destroying fluid.The truck embodies a rear axle 1, a front axle 2, a central reach orconnecting bar 8, as well as the front hounds to which the reach 3 isconnected, and the truck or running gear is also provided with asuitable tongue or shaft 4 for the draft animal. Both the front and rearaxles 1 and 2 are provided with the usual wheels 5 and 6, and the saidwheels are of a diameter sufficient to elevate the running gear or trucka dis tance away from the ground to insure the same against contact withthe plants between which the wheels travel. It will be thus noted thatthe running gear is arranged at a considerable distance from the ground,and also that the wheels are comparatively close together. While such astructure is desiraable, when the wheels travel upon the opposite sidesof the plants, it is obvious that the running gear may be so arranged asto permit of the wheels traveling between opposite 'rows of plants, andone of the nozzles which medium of a door 8, the said opening providingmeans whereby insecticide may be deposited within the tank,-and alsowhereby the poison may be stirred or mixed. Leading from the bottom oftherear closed end of the tank 7 is a pipe 9, the same being providedwith a controlling valve 10. This pipe has its end provided with a Tcoupling 11, whereby opposite and angular pipe sections 12 and 13 areconnected with the pipe 9. Suitable couplings 14 and 15 are arrangedupon the ends of the pipe sections 12 and 13, and connected with thesaid couplings are longitudinally extending pipe members 16 and 17respectively. The couplings 14 and 15 are so arranged as to permit ofthe tilting or inclination of the pipes 16 and 17, and to retain thesame at a desired angle with relation to the pipe sections 12 and 13.Connected with the ends of the pipes 16 and 17 are spray nozzles 18 and19. These nozzles are rotatably mounted upon the respective pipesections 16 and 17 and are provided with suitable means for sustainingthe said nozzles at a proper inclination with relation to either of thesaid pipes. Each of the nozzles includes a head which has an outerrounded face that is perforated, and which is provided with anon-perforated funnel-shaped rear portion or wall, connected with theface and designed to direct the fluid at an angle to said face.

Arranged within the respective pipe members 16 and 17 are plungers 20and 21. Each of the plungers is formed with an opening which iscontrolled by a flap valve 22, each of the said flap valves openingtoward its respective nozzle. Secured to the plungers 20 and 21, andextending through the couplings 14 and 15 are the plunger stems 22' and23 respectively. The couplings are provided with suitable packing boxesthrough which the stems 22 and 23 pass, and each of the said stems hasits outer extremity provided with a pivoted wheel 24. The rear Wheels-'5of the running gear are provided with substantially heart-shaped cams 25and 26, and the Wheels 24 of the stems 22 and 23 are normally forcedagainst the said cams through the medium of springs 28 and 29 whichsurround the said stems and exert a pressure thereon to force the saidwheels against the cams.

In the showing of the drawings, a spring is arranged upon each of theplungers 10,

and each of the springs exerts a tension between a flange 30, arrangedwithin the respective pipe, and a suitable collar secured to therespective plunger stem.

In order to sustain the stems in proper working position With relationto the came 25 and 26, the rear of the machine is provided with suitableguiding supports 32 and 33, and the pipe sections 12 and 13 may besuitably braced by members 34: and 35 which connect the said pipes withthe rear axle of the frame.

With the parts positioned as shown in Fig. 3, the movement of the truckwill resuit in the rotation of the cam 25, thereby forcing the stem 22and its piston 20, against the action of the spring 28, toward thenozzle, the valve 22 closing and the water in advance of-the pistonbeing thus delivered under pressure to the said nozzle. The continuedmovement of the cam again brings its depressed portion to the startingposition, thus permitting the spring to return the piston also to thestarting position, the flap valve 22 opening to permit a free passagethrough the piston of the water received from the tank by way of thepipe 9.

Having thus described the invention, what I claim is 1. In an apparatusfor the purpose set forth, a wheeled truck, an inclined tank upon thetruck, a valved outlet pipe communicating with the tank, oppositelydisposed pipe sections connected with outlet pipe, couplings adjustablyconnected with the said pipe sections, a longitudinally arranged pipeeonnected with each of the couplings, a spray nozzle rotatably connectedwith each of the said longitudinal pipes, a plunger within each of thelongitudinal pipes, each of the plungers being provided with an opening,a flap valve for each of the openings, stems for the plungers, saidstems projecting through the couplings, springs for normally forcing theplungers toward the couplings, and cam members provided upon the rearwheels and adapted to co-act with the extendingends of the stems. I

2. In an apparatus for the purpose set forth, a wheeled truck, aninclined tank upon the truck, a valved outlet pipe for the tank,transversely arranged pipe sections connected with the outlet pipe, acoupling for each of the said pipe sections, longitudinally arrangedpipes connected with the respective couplings, spray nozzles for therespective pipes rotatably secured thereon, each of the spray nozzlesincluding a head having a bulging perforated face and havingafunnel-shaped rear portion connected with the face, a plunger withineach of the said longitudinal pipes and having its stem extendingthrough the coupling, each of said plungers having a valve opening, theextensions of the stems being provided with rollers, guides for the saidstems, heartshaped cams provided upon the rear wheels and co-acting withthe rollers, and spring members for the stems, adapted to force therollers thereof into engagement with the cams of the wheels.

In testimony whereof I aitix my signature in presence of two witnesses.

WALTER WALKER.

\Vitnesses OsoAR L. BLACK, W. F. JONES.

